It is Halloween and Casper wants to befriend people rather than go a-haunting, yet his accompaniment of two trick or treating kids ends in disaster when they find out that he really is a ghost. Though upset that he can’t find any friends even on Halloween, he soon comes upon a barn playing host to a costume party. Stumbling across a solution to his ghostly transparency in the form of some whitewash, Casper coats himself and proceeds to enter the party incognito.